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The reversibility of the snuff-induced lesion: an experimental study in the rat
The Oral Surgery Emergency Clinic, Public Dental Health Service, and Dept. of Oral Surgery, University of Gothenburg, Sweden.
1986 (English)In: Journal of Oral Pathology & Medicine, ISSN 0904-2512, E-ISSN 1600-0714, Vol. 15, no 10, 540-543 p.Article in journal (Refereed) Published
Abstract [en]

Snuff lesions were induced in 30 rats. Ten of the snuff-exposed rats were killed immediately after 13 months snuff exposure, as were the 10 control animals. Ten rats were killed 1 month and 10 rats 4 months after the snuff administration had ceased. The rats exposed to snuff for 13 months exhibited hyperplastic, hyperorthokeratotic epithelium with focal mild atypia, focal ulcerations and marked subepithelial fibrosis. These changes were markedly reduced or absent in rats exposed to snuff and killed after a snuff-free interval of 1 or 4 months. Similar differences between the test-groups were seen in the epithelium lining the gingival sulcus of the lower incisors. This area seems to be more sensitive to chemical exposure than the oral mucosa proper as more severe microscopical changes were seen here. Snuff exposure results in the development of a hyperplastic, reactive, reversible lesion of the oral mucosa, suggesting that snuff predominantly has promoting activity when administered for a relatively short interval of time.

Place, publisher, year, edition, pages
1986. Vol. 15, no 10, 540-543 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-222035DOI: 10.1111/j.1600-0714.1986.tb00573.xPubMedID: 3104561OAI: oai:DiVA.org:uu-222035DiVA: diva2:710574
Available from: 2014-04-07 Created: 2014-04-07 Last updated: 2014-11-04Bibliographically approved

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